Most U.S. adults now say it is not necessary to believe in God to be moral and have good values (56%), up from about half (49%) who expressed this view in 2011. This increase reflects the continued growth in the share of the population that has no religious affiliation, but it also is the result of changing attitudes among those who do identify with a religion, including white evangelical Protestants. Surveys have long shown that religious “nones” – those who describe themselves religiously as atheist, agnostic or “nothing in particular” – are more likely than those who identify with a...